IPV6-VOIP ANIL K NARAM A1263 CN426-SVU

Introduction IPV4 IPV6 VOIP IPV4 to IPV6 Migration of VOIP to IPV6

Introduction to IPV6 Expanded addressing capabilities Header format simplification Improved support for extension headers Flow labeling capability Authentication and privacy

IPV6 Header Format

Version Field Traffic Class Flow Label Payload Length Next Header Hop Limit Source and Destination Address

MIGRATING TO IPV6 STAGE 1: IPV4 only networks. STAGE 2:IPV6 islands connected through IPV4 network. STAGE 3:Interconnection of IPV4/IPV6 networks. STAGE 4:IPV4 islands connected through IPV6 network. STAGE 5:IPV6 only networks.

Interconnecting IPV6 and IPV4 networks

TRANSITION METHODOLOGIES IPV4/IPV6 DUAL STACKS TUNNELING

Tunneling mechanism for inter working IPV4& IPV6

Several types of IPV6-to-IPV4 tunnels MANUALLY CONFIGURED TUNNELS(MCT) DYNAMIC 6TO4 TUNNELS TEREDO TUNNELING

Teredo Clients Teredo Servers Teredo Relays

Structure Of IPV6 Teredo address

TRANSLATING BETWEEN IPV4 AND IPV6 WITH NAT-PT COMM… IPV4 ONLY N/W WITH IPV6-ONLY

VOIP Typical Interconnection of VOIP and PSTN

Characteristics of several voice codecs

Voip Protocols MGCP(Media gateway control protocol) SIP(Session Initiation Protocol) H.323

Media Gateway Control Protocol

Typical MGCP Environment MGCP Components: Endpoints Gateways Call Agents

SESSION INITIATION PROTOCOL Working Principle of SIP at a glance Proxy Server DNS Server Location Server

Basic SIP trapezoid

Basic SIP flow label

H.323-PROTOCOL AT A GLANCE COLLECTION OF PROTOCOLS Q.931 H.225 H.245

Protocol Relationships In H.323

Gatekeeper Routed Call Model In H.323

OTHER ISSUES DOMAIN NAMING SYSTEM IN IPV6 IPV6 APPLICATION TRANSITION ISSUES

SESSION INITIATION PROTOCOL(SIP) AND IPV6 APPLICATIONS WITH IPV6 MIGRATION

IPV6/IPV4 network with Session Initiation Protocol

CONCLUSION

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